Glass-tempering device.



J. RAU- GLASS TEMPERING DEVICE.

APPL'ICATION FILED N0v.13.1914.

l,%6,5 Patented May 21,1918.

(E1371 Q! X? ran stares PATENT canton JOHN RAU, OF INDIANAPOLIS, INDIANA.

GLASS-TEMPERING DEVICE.

To all whom it may concern:

Be it known that 1, JOHN RAU, a citizen of the United States and a'resident of Indianapolis, county of Marion, and State of Indiana, have invented a certain new and useful Glass-Tempering Device; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like letters refer to like parts. The object of this invention is to regulate the tempering of large hollow bottles or other hollow glassware. In making such large bottles, it is necessary to maintain the heat of the upper part of the bottle while the bottom which is heavy cools. If such glass articles are taken from the molds and placed at once in the open air, a large percentage of them are injured by the air cooling them too suddenly. This device retards the cooling of them and thus tempers and saves them from bursting.

Another feature of the invention is the provision of bottom plates shaped to conform to the bottom of the bottles u on which the bottles may be placed when st taken from the molds and thus, while the glass in the bottom of the bottle is rather soft, its form will be maintained by the bottom plate upon which it rests until the glass becomes set and tempered sufliciently for it to retain its form.

The full nature of the invention will be understood from the accompanying drawings and the following description and claim.

In the drawings, Figure 1 is a front elevation of the mechamsm showing one hood elevated for the removal of a bottle and the remaining hoods lowered inclosing the bottles. Fig. 2 is a section on the line 2-2 of Fig. 1. Fig. 3 is a central section through" a bottom plate. Fig. 4 is a central vertical section of a hood.

The bottles 10 are large havmg a capaclty of five, ten or fifteen gallons, and as they are taken from the molds they are placed upon bottom plates -11 which are secured upon a table 12. There is a row of these bottom plates shown herein and each plate 11 has its upper surface 13 shaped to conform with Specification of Letters Patent.

fits rather snugly around said plate.

positlon,

. to provide a number including a table,

Patented May 21, 191$.

Application filed November 13, 1914. Serial No. 871,901.

the shape of the bottom of the bottle 10.

Therefore, when the bottle is laced upon said bottom plate, the latter w1l1 reinforce the bottom of the bottle and hold the glass thereof in position and shape until fully set or cooled sufli'ciently for it to maintain its shape. After the device has been used a few moments, these bottom lates 11 all become heated and, therefore, t ere is not sufficient difference of temperature between them and the bottoms of the bottles to cause the glass to chill and break.

After'a bottle 10 is laced u on a bottom 11, a hood 15 is laced over t e bottle and bottom plate an 'rests u on the table 12. The hood is lined with as loestos 115 and is closed excepting at its lower end and its internal diameter is only slightly greater than the diameter of the plate so that it hoods are pre erably manipulated by the means shown herein. nected with the top of the hood and it runs over a sheave 17 on a horizontal rod 18 mounted in connection with a frame 19 which extends up from the table 12. The weight of the hood is counterbalanced by a A cable 16 is con i weight 20, so that either the hood or weight 1 down when it is moved to its down and will stay u when it is elevated. V In operation, the mec anism is arranged of these hoods and bottom plates and the bottles are placed on them in succession and as soon as one hood is elevated and the bottle removed, another bottle is dput in the place of the removed bottle an this is done in succession and b the time the bottles have been placed in a l of the hoods, each bottle will have become will stay sufficiently tempered to maintain its formand will not be seriously influenced b the difference between its temperature an that of the atmosphere so that the bottle can be safely removed from this device to the leer. Since the bottom is heavy, the topmust be kept hot while the bottom is cooling,

The invention claimed is: A device for tempering large glassware a rigid frame extendin a rod mounted on said upward therefrom,

independent pulleys frame above said table,

on said rod, 0 cable on each pulley, a hood my signature in the presence of the witnesses im onedend of each eglble 051d adapted 0 bemherein named.

owere upon said. ta e an 006 erate t ere.- with for inclosing the glasswareFand a coun- JOHN 5 terbalancing weighton the other end of each Witnesses:

cable. J. H. WELLS,

In witness whereof I have hereuntq R, G. Locxwoon. 

